Mathematical Reasoning and Aptitude

If the side of the square increases by 40%, then the area of the square
increases by
(A) 60 %
(B) 40 %
(C) 196 %
(D) 96 %
Answer: D

There are 10 lamps in a hall. Each one of them can be switched on
independently. The number of ways in which hall can be illuminated is
(A) 102
(B) 1023
(C) 210
(D) 10 !
Answer: B

How many numbers between 100 and 300 begin or end with 2?
(A) 100
(B) 110
(C) 120
(D) 180
Answer: B

In a college having 300 students, every student reads 5 newspapers and
every newspaper is read by 60 students. The number of newspapers
required is
(A) at least 30
(B) at most 20
(C) exactly 25
(D) exactly 5
Answer: C

If (y)x represents a number y in base x, then which of the following
numbers is smallest of all?
(A) (1111)2
(B) (1111)8
(C) (1111)10
(D) (1111)16
Answer: A